Not bad at all!

The few it does, it does it well.
Shortly: takes many shots to average them and increase the signal to noise ratio.

Yet to be improved/added:
- better stability (on iPhone 4s, full res, it shuts down very often while saving the processed picture
- possibility to make aperture/ISO bracketing (for example: taking 8 pictures from - 2IL to +2IL)

I would rate the App 5 stars for that 2 first points.

Then:
- a step further: picture auto-alignment to avoid tripod
- final dream: oversampling and super-resolution.
Wow! Good luck to the dev team :-)

Paulo164 about Average Camera Pro, v3.0.1